Non fiction covers a huge variety of genres and sub genres. Sure, a book on tort law is non fiction, but so is a book on making cakes. They're not all boring or fuddy duddy and highbrow

Fiction can be very formulaic, you read one book by some authors and you've read them all. Even certain genres are along those lines, and I find it a little dull. I tend to find more that entertains me in non fiction than in fiction tbh, precisely because it has such a broad range. It's not that I don't read fiction, but I definitely favour non fiction for the scope.